An aerial radiological survey of the Hanford Site and surrounding area, Richland, Washington

Technical Report · Mon Oct 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/6002021· OSTI ID:6002021

An aerial radiological survey was conducted over the Department of Energy's Hanford Site near Richland, Washington, during the period 5 July through 26 August 1988. The survey was expanded, and additional flights were conducted to the east of the site and along the banks of the Columbia River down to McNary Dam near Umatilla. The survey was flown at altitude of 61 meters (200 feet) by a helicopter containing 17 liters (eight 2 in. {times} 4 in. {times} 16 in.) of sodium iodide detectors. Gamma ray data were collected over the survey area by flying north-south lines spaced 122 meters (400 feet) apart. The processed data indicated that detected radioisotopes and their associated gamma ray exposure rates were generally consistent with those expected from normal background emitters and man-made fission/activation products resulting from activities at the site. External exposure rates were generally 10 microroentgens per hour ({mu}R/h) with some operating areas over 1000 {mu}R/h. The radiation levels over more than 95% of the site are due to normal background exposure rates. 3 refs., 25 figs.

• Research Organization: EG and G Energy Measurements, Inc., Las Vegas, NV (USA). Remote Sensing Lab.
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC08-88NV10617
• OSTI ID: 6002021
• Report Number(s): EGG-10617-1062; ON: DE91008633; TRN: 91-008032
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
HANFORD RESERVATION
AERIAL SURVEYING
RADIATION MONITORING
BACKGROUND RADIATION
IMAGES
MAPS
NATURAL RADIOACTIVITY
REMOTE SENSING
MONITORING
NATIONAL ORGANIZATIONS
RADIATIONS
RADIOACTIVITY
US DOE
US ERDA
US ORGANIZATIONS
540230* - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (1990-)